I'm not sure what you have but if its a 235 you should look on the little "pad" just beside where the distributor goes down into the engine. There should be number stamped there. Get it and post here on the post and one of these nice bolters will decipher it for you.
You'll probably have to wipe off the grease/dirt to see the numbers.


1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile